Nature Power 6 Watt Solar Battery Trickle Charger Type: Amorphous thin film. Voltage: 12 Volts DC. Maximum Power: up to 6 Watts. Maximum Current: up to 400 mA. Dimensions Each: 12 1/2" x 12 1/2" x 1". Weight Each: 3 lbs. Country of Origin: China. Shipping Dimension: 14" x 16 1/2" x 2", Weight: 3.3 Lbs.